2112312017 has 2 divisors, whose sum is σ = 2112312018. Its totient is φ = 2112312016.

The previous prime is 2112312001. The next prime is 2112312029. The reversal of 2112312017 is 7102132112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1880176321 + 232135696 = 43361^2 + 15236^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112312017 - 2⁴ = 2112312001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112312017.

It is not a weakly prime, because it can be changed into another prime (2112315017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056156008 + 1056156009.

It is an arithmetic number, because the mean of its divisors is an integer number (1056156009).

Almost surely, 2^2112312017 is an apocalyptic number.

It is an amenable number.

2112312017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112312017 is an equidigital number, since it uses as much as digits as its factorization.

2112312017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 2112312017 is about 45959.8957461829. The cubic root of 2112312017 is about 1283.0769110361.

Adding to 2112312017 its reverse (7102132112), we get a palindrome (9214444129).

The spelling of 2112312017 in words is "two billion, one hundred twelve million, three hundred twelve thousand, seventeen".